Examine source code of Mig-3 Historical

{
  "theme": {
    "images": {
      "theme_frame": "Mig3.jpeg"
    },
    "colors": {
      "frame": "#c4bcbc",
      "tab_background_text": "#262626"
    }
  },
  "version": "2.0",
  "name": "Mig-3 Historical",
  "manifest_version": 2,
  "description": "Ruský letoun Mig-3 v barvách historické černo-bíle fotografie. Serie historických person letounu venovaná pilotum. Russian Mig-3 in historical photo collors. Historic aviation personas dedicated to pilots."
}